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From: tim@proton.amd.com (Tim Olson)
Newsgroups: comp.lang.c
Subject: Re: float to double pain
Message-ID: <1990Dec11.173043.8171@mozart.amd.com>
Date: 11 Dec 90 17:30:43 GMT
References: <4268@ritcsh.cs.rit.edu> <9919@hydra.Helsinki.FI>
Sender: usenet@mozart.amd.com (Usenet News)
Reply-To: tim@amd.com (Tim Olson)
Organization: Advanced Micro Devices, Austin, TX
Lines: 25

In article <9919@hydra.Helsinki.FI> wirzeniu@cs.Helsinki.FI (Lars Wirzenius) writes:
| In article <4268@ritcsh.cs.rit.edu> you write:
| >t(f1)
| >float f1;
| >{
| >	check(&f1);
| >}
| 
| For old-style function definitions arguments of type float are silently
| rewritten to be of type double.

	Correct.

| So &f1 is actually a pointer to a
| double, which is inconsistent with check's expectation of a pointer to a
| float.

	This isn't right -- type-rewriting does not take place for
	pointers; &f1 is still a pointer to a float.


--
	-- Tim Olson
	Advanced Micro Devices
	(tim@amd.com)